[evince/gnome-3-8] ensure top/bottom and left/right relations for /FitR boxes

[Carlos Garcia Campos <carlosgc src gnome org>]

commit c710f3ff9c170ea1e3b97a3a860242417e7f60a2
Author: Simon Budig <simon budig de>
Date:   Sun Mar 10 01:15:45 2013 +0100

    ensure top/bottom and left/right relations for /FitR boxes
    
    adresses the usability problem described in
    https://bugzilla.gnome.org/show_bug.cgi?id=695524

 backend/pdf/ev-poppler.cc |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/backend/pdf/ev-poppler.cc b/backend/pdf/ev-poppler.cc
index b2b8e04..883de2d 100644
--- a/backend/pdf/ev-poppler.cc
+++ b/backend/pdf/ev-poppler.cc
@@ -1273,11 +1273,13 @@ ev_link_dest_from_dest (PdfDocument *pdf_document,
                        poppler_page = poppler_document_get_page (pdf_document->document,
                                                                  MAX (0, dest->page_num - 1));
                        poppler_page_get_size (poppler_page, NULL, &height);
+                       /* for evince we ensure that bottom <= top and left <= right */
+                       /* also evince has its origin in the top left, so we invert the y axis. */
                        ev_dest = ev_link_dest_new_fitr (dest->page_num - 1,
-                                                        dest->left,
-                                                        height - MIN (height, dest->bottom),
-                                                        dest->right,
-                                                        height - MIN (height, dest->top));
+                                                        MIN (dest->left, dest->right),
+                                                        height - MIN (height, MIN (dest->bottom, dest->top)),
+                                                        MAX (dest->left, dest->right),
+                                                        height - MIN (height, MAX (dest->bottom, 
dest->top)));
                        g_object_unref (poppler_page);
                }
                        break;